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I thought I was going to need a masters in EE to figure this one out, but surprisingly no. The avid backpackers at Yosemiteoutside needed a better solution to their short iPod battery life. In comes this simple and easy solar charger. A handful of parts and seven steps later they had an easy solution to a problem plaguing a lot of us. Follow the linkage to see the steps and figure out how to do it yourself.